Anti-reflective glass with ultra-large panel and preparation method thereof

Abstract

The invention provides anti-reflective glass with ultra-large panel and preparation method thereof. The anti-reflective glass comprises a glass substrate and a film-plating layer, wherein the film-plating layer is attached on the outer surface of one side of the glass substrate; the anti-reflective glass is characterized in that the film-plating layer comprises a first-layer silicon nitride layer,a second-layer silicon oxide layer, a third-layer silicon nitride layer and a fourth-layer silicon oxide layer which are fitted together in sequence from the glass substrate to an air surface; the thickness of the first-layer silicon nitride layer is 10nm to 16nm; the thickness of the second-layer silicon oxide layer, is 10nm to 20nm; the thickness of the third-layer silicon nitride layer is 10nmto 15nm; the thickness of the fourth-layer silicon oxide layer is 100nm to 120nm. According to the anti-reflective glass provided by the invention, the film-plating layer has high temperature resistance; after the film-plating layer is toughened for about 500s at the temperature of 700 DEG C, a film layer is not burnt by high temperature and the surface optical performance is consistent to that of a film layer which is not toughened. A film-layer structure is optimized so that needed optical performance can be obtained and the glass also can be toughened.

Description

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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a super-large anti-reflection glass and its prepar

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